Frederick c



uiten ,tetes gamutv @High FREDERICK C. FULLER, OF LOWELL, MASSACIIUSETTS.

Letters .Patent No. 71,477, dated November 26, 1867.l

dlgs tlgehnie referat tu in time Enters atent mit making had yat its time.

TO WHOM IT MAY CONCERN Y Be it known that I, FREDERICK C. FULLER, of Lowell, in the county of Middlesex, and State of Massachusctts, have invented certain new and useful Improvements in Shell-Rolls which are used in Spinningdiiachines for drawing,r the roving or sliver before it reaches the spinning-diere and the bobbins, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings,'making part of-this specification, in which- Figure 1 represents a central longitudinal 1section of an ordinary shell-roll with my improvements applied thereto.

Figures 2 and 3 are transverse sections on the lines A B and Y Z respectively.

Figure 4, an end view, and

Figurel 5 a front view of the roll as it is applied to the supporting-stands C, which are arranged onthe top ofthe spinning-machines a little back of the Hier-plates. i

This invention consists in the employment of a hollow arbor, a, which has oil-holes e near Vthe centre of its length, communicating with the central passage e of the arbor, and also oil-holes n, which lead from the c entral passage to the `innersurface of 'the shell-rolls B, the object of which oil-holes and the central passage is to oil or lubricate the inner surface of the shell-rolls, and the outer surface of the arbor on which said shell-rolls l rotate, withcut'removing the rolls from the arbor, or thev arbor from the roller-stands.

` In the use of the ordinary shell-rolls for spinning and drawing-machines, the arbors being rolled in order to oil the bearings between thefinnor surface of the rolls and the outer surface of the arbor, it is necessary to n disengage the stirrups which hold .the rollsdown into the driving-rolls, and then removcthe arbor and the rolls from the supporting-stands, and then remove the rolls from the arbor, to get at the arbor in a. manner to apply the oil or lubricating substances. VAfter oiling th'e arbors, the shell-rolls are slid into the arbors, and the arbor and rolls replaced in the stands or bearings, and the stirrups readjusted. This-operation of oiling the ordinary shell-rolls is very slow, tedious, aud expensive, as much valuable time is wasted by the machinepremaining at i rest during the entire operation of oiling from fifty to two hundred or more of the shell-rolls o each machine.

Either or both ends of the arbor may be plugged to prevent the escape of oil therefrom.V In the use of my invention on the spinning or drawing-machines, it is not necessary'to stop the machine at all, butthe ailing of the shell-rolls may' be done at any convenient time, and without the least intcrruptionpto the operation of the machine, th'e inlet oil-holes e being :1l-ways upward. y

My improvement in shell-rolls is well adapted to any kind of spinning or drawng-machines, or to any machine used for drawing, spinning., or twisting fibrous substances, yarns, or threads, and is very useful in them all.

` `tially as described.

What I claim as new, and desire to secure by Letters Patent, is- The central passage e, and oil-holes e and n in the arbor a of the shell-rolls, for the Vpurpose and substan- FREDERICK C. FULLER.

Witnesses:

JOHN E. CRANE, HERMON N. GREEN. 

